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Failure criterion for metallic glasses
Chen Y(陈艳); Jiang MQ(蒋敏强); Wei YJ(魏宇杰); Dai LH(戴兰宏); Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
Source PublicationPhilosophical Magazine
2011
Volume91Issue:36Pages:4536-4554
ISSN1478-6435
AbstractMetallic glasses exhibit not only multiple failure modes but also differences in ultimate strength, plastic strain to fracture and asymmetric deviation of failure angles from 45 degrees between tension and compression. The available failure theories cannot fully characterize these phenomena and the underlying physics has not been completely clarified. Here, based on the short-range order structure in metallic glasses, we derive an inherent law that determines when metallic glasses might yield or fracture. A unified failure criterion is constructed which satisfactorily predicts the complex failure behavior observed in metallic glasses. We show that the shear-to-normal strength ratio alpha and the strength-differential factor beta, characterizing shearing resistance between atomic layers and shear-caused dilatation, respectively, have dual control over whether metallic glasses yield in a ductile manner or fracture in brittleness.
KeywordFailure Criterion Strength-differential Effect Brittle-ductile Transition Fracture Mechanics Metallic Glasses Bulk Amorphous-alloys Nearest-neighbor Distance Mechanical-properties Plastic-flow Shear-band Gaussian Distribution Pressure Sensitivity Inhomogeneous Flow Structural Model Tensile Fracture
Subject AreaMaterials Science ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics
DOI10.1080/14786435.2011.613859
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000298585800002
WOS KeywordBULK AMORPHOUS-ALLOYS ; NEAREST-NEIGHBOR DISTANCE ; MECHANICAL-PROPERTIES ; PLASTIC-FLOW ; SHEAR-BAND ; GAUSSIAN DISTRIBUTION ; PRESSURE SENSITIVITY ; INHOMOGENEOUS FLOW ; STRUCTURAL MODEL ; TENSILE FRACTURE
WOS Research AreaMaterials Science ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationFinancial support from the NSFC (Grants Nos. 10725211, 11002144 and 11021262), the National Natural Science Foundation of China-NSAF (Grant No. 10976100), the National Basic Research of China (Grant No. 2009CB724401), and the Key Project of Chinese Academy of Sciences (Nos. KJCX2-YW-M04) is acknowledged.
DepartmentLNM冲击动力学与新型材料力学性能
Classification一类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44956
Collection非线性力学国家重点实验室
Corresponding AuthorDai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chen Y,Jiang MQ,Wei YJ,et al. Failure criterion for metallic glasses[J]. Philosophical Magazine,2011,91(36):4536-4554.
APA 陈艳,蒋敏强,魏宇杰,戴兰宏,&Dai, LH .(2011).Failure criterion for metallic glasses.Philosophical Magazine,91(36),4536-4554.
MLA 陈艳,et al."Failure criterion for metallic glasses".Philosophical Magazine 91.36(2011):4536-4554.
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